| 基于HMM的地形高度匹配算法 |
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| 引用本文： | 冯庆堂,沈林成,常文森,叶媛媛.基于HMM的地形高度匹配算法[J].自动化学报,2005,31(6):960-964. |
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| 作者姓名： | 冯庆堂 沈林成 常文森 叶媛媛 |
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| 作者单位： | 1.State Key Laboratory of Intelligent Technology and Systems, Tsinghua University, Beijing 100084 |
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| 基金项目： | Supported by National Natural Science Foundation of P.R.China (10577012),National Grand Fundamental Research “973” Program of P.R.China (5130801) |
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| 摘 要： | Terrain-aided navigation (TAN) uses terrain height variations under an aircraft to render the position estimate to bound the inertial navigation system (INS) error. This paper proposes a new terrain elevation matching(TEM) model, viz. Hidden-Markov-model(HMM) based TEM (HMMTEM) model. With the given model, an HMMTEM algorithm using Viterbi algorithm is designed and implemented to estimate the position error in INS. The simulation results show that HMMTEM algorithm can better improve the positioning precision of autonomous navigation than SITAN algorithm.
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| 关 键 词： | TAN TEM HMM Viterbi algorithm INS |
| 收稿时间： | 2004-02-09 |
| 修稿时间： | 2005-07-15 |
An HMM Based Terrain Elevation Matching Algorithm |
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| FENG Qing-Tang,SHEN Lin-Cheng,CHANG Wen-Sen,YE Yuan-Yuan.An HMM Based Terrain Elevation Matching Algorithm[J].Acta Automatica Sinica,2005,31(6):960-964. |
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| Authors: | FENG Qing-Tang SHEN Lin-Cheng CHANG Wen-Sen YE Yuan-Yuan |
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| Affiliation: | 1.State Key Laboratory of Intelligent Technology and Systems, Tsinghua University, Beijing 100084 |
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| Abstract: | Terrain-aided navigation(TAN)uses terrain height variations under an aircraft to ren- der the position estimate to bound the inertial navigation system(INS)error.This paper pro- poses a new terrain elevation matching(TEM)model,viz.Hidden-Markov-model(HMM)based TEM (HMMTEM)model.With the given model,an HMMTEM algorithm using Viterbi algorithm is de- signed and implemented to estimate the position error in INS.The simulation results show that HMMTEM algorithm can better improve the positioning precision of autonomous navigation than SITAN algorithm. |
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| Keywords: | TAN TEM HMM Viterbi algorithm INS |
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